func pickerView(pickerView: UIPickerView!, didSelectRow row: Int, inComponent: Int) {
    colourSelected = row
    NSUserDefaults.standardUserDefaults().setInteger(colourSelected, forKey: "userSelectedColour")

    if colourSelected == 0 {
        self.navigationController.navigationBar.barTintColor = UIColor.newBlueColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newBlueColor()
        UINavigationBar.appearance().barTintColor = UIColor.newBlueColor()
        UISegmentedControl.appearance().tintColor = UIColor.newBlueColor()
        changeButton.layer.backgroundColor = (UIColor.newBlueColor()).CGColor
    } else if colourSelected == 1 {
        self.navigationController.navigationBar.barTintColor = UIColor.newGreenColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newGreenColor()
        UINavigationBar.appearance().barTintColor = UIColor.newGreenColor()
        UISegmentedControl.appearance().tintColor = UIColor.newGreenColor()
        changeButton.layer.backgroundColor = (UIColor.newGreenColor()).CGColor
    } else if colourSelected == 2 {
        self.navigationController.navigationBar.barTintColor = UIColor.newPinkColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newPinkColor()
        UINavigationBar.appearance().barTintColor = UIColor.newPinkColor()
        UISegmentedControl.appearance().tintColor = UIColor.newPinkColor()
        changeButton.layer.backgroundColor = (UIColor.newPinkColor()).CGColor
    } else if colourSelected == 3 {
        self.navigationController.navigationBar.barTintColor = UIColor.newPurpleColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newPurpleColor()
        UINavigationBar.appearance().barTintColor = UIColor.newPurpleColor()
        UISegmentedControl.appearance().tintColor = UIColor.newPurpleColor()
        changeButton.layer.backgroundColor = (UIColor.newPurpleColor()).CGColor
    } else if colourSelected == 4 {
        self.navigationController.navigationBar.barTintColor = UIColor.newRedColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newRedColor()
        UINavigationBar.appearance().barTintColor = UIColor.newRedColor()
        UISegmentedControl.appearance().tintColor = UIColor.newRedColor()
        changeButton.layer.backgroundColor = (UIColor.newRedColor()).CGColor
    } else if colourSelected == 5 {
        self.navigationController.navigationBar.barTintColor = UIColor.newTurquoiseColor()
        self.tabBarController.tabBar.selectedImageTintColor = UIColor.newTurquoiseColor()
        UINavigationBar.appearance().barTintColor = UIColor.newTurquoiseColor()
        UISegmentedControl.appearance().tintColor = UIColor.newTurquoiseColor()
        changeButton.layer.backgroundColor = (UIColor.newTurquoiseColor()).CGColor
    }
    }